Search Results - "Walvick, Ronn P."

Distribution of hyperpolarized xenon in the brain following sensory stimulation: preliminary MRI findings by Mazzanti, Mary L, Walvick, Ronn P, Zhou, Xin, Sun, Yanping, Shah, Niral, Mansour, Joey, Gereige, Jessica, Albert, Mitchell S

“…In hyperpolarized xenon magnetic resonance imaging (HP (129)Xe MRI), the inhaled spin-1/2 isotope of xenon gas is used to generate the MR signal. Because…”
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Evaluation of oxygen sensitivity of hyperpolarized helium imaging for the detection of pulmonary ischemia by Walvick, Ronn P., Roche, John P., Reno, Austin L., Gounis, Matthew J., Albert, Mitchell S.

“…Purpose In this study, a new model of pulmonary embolism in rats was developed and tested, to examine if hyperpolarized (HP) 3He MR images can measure…”
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Estimation and correction of cardiac respiratory motion in SPECT in the presence of limited-angle effects due to irregular respiration by Dey, Joyoni, Segars, William P., Pretorius, P. Hendrik, Walvick, Ronn P., Bruyant, Philippe P., Dahlberg, Seth, King, Michael A.

“…Purpose: One issue with amplitude binning list-mode studies in SPECT for respiratory motion correction is that variation in the patient’s respiratory pattern…”
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Membrane Order and Molecular Dynamics Associated with IgE Receptor Cross-Linking in Mast Cells by Davey, Angel M., Walvick, Ronn P., Liu, Yuexin, Heikal, Ahmed A., Sheets, Erin D.

“…Cholesterol-rich microdomains (or “lipid rafts”) within the plasma membrane have been hypothesized to exist in a liquid-ordered phase and play functionally…”
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Visualization of Clot Lysis in a Rat Embolic Stroke Model: Application to Comparative Lytic Efficacy by WALVICK, Ronn P, BRATANE, Bernt T, HENNINGER, Nils, SICARD, Kenneth M, BOULEY, James, ZHANYANG YU, ENG LO, XIAOYING WANG, FISHER, Marc

“…The purpose of this study was to develop a novel MRI method for imaging clot lysis in a rat embolic stroke model and to compare tissue plasminogen activator…”
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Dynamics imaging of lipid phases and lipid-marker interactions in model biomembranes by Ariola, Florly S, Mudaliar, Deepti J, Walvick, Ronn P, Heikal, Ahmed A

“…Biomembranes are complex systems that regulate numerous biological processes. Lipid phases that constitute these membranes influence their properties and…”
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Characterization of gadolinium-based dynamic susceptibility contrast perfusion measurements in permanent and transient MCAO models with volumetric based validation by CASL by Bråtane, Bernt T, Walvick, Ronn P, Corot, Claire, Lancelot, Eric, Fisher, Marc

“…Perfusion imaging is crucial in imaging of ischemic stroke to determine ‘tissue at risk’ for infarction. In this study we compared the volumetric…”
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Marked pericardial inhomogeneity of specific ventilation at total lung capacity and beyond by Sun, Yanping, Butler, James P, Lindholm, Peter, Walvick, Ronn P, Loring, Stephen H, Gereige, Jessica, Ferrigno, Massimo, Albert, Mitchell S

“…Abstract We measured regional ventilation at 1 l above functional residual capacity (FRC + 1L) and total lung capacity (TLC) in three normal subjects and four…”
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Evaluation of oxygen sensitivity of hyperpolarized helium imaging for the detection of pulmonary ischemia: Oxygen Sensitivity of Hyperpolarized Helium by Walvick, Ronn P., Roche, John P., Reno, Austin L., Gounis, Matthew J., Albert, Mitchell S.

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Estimation and correction of cardiac respiratory motion in SPECTin the presence of limited-angle effects due to irregular respiration by Dey, Joyoni, Segars, William P., Pretorius, P. Hendrik, Walvick, Ronn P., Bruyant, Philippe P., Dahlberg, Seth, King, Michael A.

“…Purpose: One issue with amplitude binning list-mode studies in SPECT for respiratory motion correction is that variation in the patient's respiratory pattern…”
Get full text